A volunteer firefighter died from severe burns and several people were hospitalised in dozens of wildfires that raged across Spain, fuelled by strong winds and scorching heat.

Spain is battling a series of devastating wildfires that have killed two people and destroyed thousands of hectares of forest and scrubland. There are currently 14 major active fires, Minister for Ecological Transition Sara Aagesen told radio station Cadena Ser on Wednesday.

Evacuation centres are pushed to capacity while heatwave aggravates wildfires in Spain, with scientists pointing to climate change as a major causal factor.